This is very good!They are this way so that they will never, ever, give up the fight. Even if the person they are taking down is assaulting them. This is for police and protection work.
IPO, French ring, Mondioring, etc... The 'bite' or 'protection' sports, can just be sports. Much like agility and rally. I know (very few) dogs achieve high level results with positive reinforcement based training too. They see it as a game, doesn't make the dog less stable or more prone to biting people.
Like I said, they aren't all this way. I have not heard of these kinds of stories from my dog's breeder. Her dogs go into therapy and service work too and are stable and clear headed. Those who know more than me know which lines to avoid, if you don't want handler aggression. Though in the story I posted, it wasn't necessarily handler aggression. It was just very, very intense fight drive and lack of a release cue.
EDIT: Just read your last post. Didn't detect the sarcasm in the prior one. Oops!
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